Installing a Multi-Tech modem for use in the USA

Follow these simple instructions when you deploy a new Multi-Tech 3G modem. The steps cover:

  1. Getting MMS connection information
  2. Fitting the SIM card into the modem
  3. Cables connections
  4. Driver installation
  5. Sending AT commands to the modem to enable message receipts
  6. Configuring smsLINES to use the new communication line

MMS connection information

This is required only if you intend to install an MMS communication line in smsPULSE.

Before you begin we suggest you obtain the MMS connection information from your cell phone. Do this first if you intend to try the modem using your existing SIM. To verify that the details are correct we also recommend that you check that all is working OK with your SIM by sending and receiving MMS with another handset. Once verified you are ready to copy the details and keep these for use when configuring a communication line in sms.ADMIN.

For example, this is where we get the MMS configuration from an iPhone 4 device. (Settings\General\Network\Cellular Data Network)

Note: Please be aware that if the APN you use is wrong, when connecting to the network all other IP connections on this host may be temporarily off. In such a case make sure you use the correct APN for the carrier. The APN is specified in a Communication Line record, part of the smsLINES setup.

Fitting the SIM card

  1. Ensure the modem is not connected to either the computer or the power supply
  2. The SIM card needs to be inserted into place inside the modem. To access the SIM slot you will need to remove the SIM cover using a screwdriver
  3. The SIM metal conectors go in first facing down

Note: Take care not to drop the SIM into the modem internal space. If the SIM drops, you will need to get it out with somthing like tweezers (not supplied).

Cable connections

  1. Use the USB cable. Connect it to one of the available USB ports on your server, and connect the Mini USB connector to the modem
  2. Connect the power supply to the modem and the wall
  3. Connect the antenna

Installing the Driver software

The modem is supplied with a CD-ROM and the driver is available on it. The simplest way to install the drivers is while adding a modem, as follows:

In Windows, start Control Panel

  1. Click on Phone and Modem (if you cannot see this option, use the search box on the top right and type "modem")
  2. On the dialogue box, click on the "Modems" tab
  3. Click on "Add"
  4. Either ask Windows to find your modem or do so manually
  5. When prompted to select a modem type click on "Have Disk"
  6. With the Multi-Tech CD inserted into the CD reader, navigate to the CD and select its root
  7. You can try "pre-install" the drivers but it's simpler to add these now. Select the right modem and click next

Once the driver has loaded you will see a new modem on the list, like this:

Sending AT Commands

Some modems require that you send them AT commands to enable proper operations. The commands here tell the modem what memory to use for messages. To issue the command to the modem we'll use a terminal application such as Hyper Teminal. If Windows has not installed this on your computer, do so now, otherwise you may download it from here.

Run the terminal application.

After you name the connection, select the modem via its COM port, and not its TAPI name, like so:

  1. You must select it as a COM port otherwise you will only be able to use it to make calls and not use it as a terminal
  2. Once you click OK, accept the port speed and the program will connect to the terminal. The status at the bottom will show "Connected 00:00:xx"
  3. You are now ready to send AT commands. To check that the modem responds to you, just type AT and hit return


The modem will respond with "OK"

So that you can see what you are typing, type this and hit return:


Until you type the above you will only see "OK".

Now type exactly as you see below:


The modem will respond with "OK"

Now type, exactly as you see below:


The modem will respond with "OK"

This is it, you are done.  You can close the terminal program.

Configuring smsLINES

You are now ready to configure smsLINES (part of smsPULSE) to use the new modem. See the smsPULSE help for full details, or click here.  In general, smsPULSE needs to be installed and started. When smsLINES starts for the first time it will detect your new TAPI modem and automatically create a communication line for it. The type will be GSM but if you require MMS you will need to use the TAPI name and convert it to MM1 type. This is done simply by clicking on the link at the bottom of your Communication Line form.

Once your communication line is set it will operate in evaluation mode.